Mac OS X gui: Make sure the fullscreen window will stay on top (should fix a blinking issue when leaving fullscreen).

* puzzle.c: compile warning fix.

Patch from Paul Corke for rawdv to advance the timestamp when it is about to fall behind because the hardware sometimes skips a frame on a live feed. Renamed - -rawdv-realtime to --rawdv-hurry-up because its working is similar to --sout-transcode-hurry-up. Also fixed a potential memory leak.

(That usually happens when system D-Bus daemon is not running)

time option to use floats instead of integers. Performance comparison
is:
(performance is in numbers of samples output by oprofile. Less is better)

sigma   old version (integers)       integers       floats
 2.0    556889                    466435 (-17%)  481293 (-13%)
 4.0    902749 (core maxed out)   732755 (-19%)  716070 (-21%)

I'll have to check why relative performance gain depends on sigma when
comparing the the float and integer versions.

I'll aslo add another module (most likely named fastgaussianblur.c)
based on Frederick M. Waltz and John W. V. Miller's "An efficient
algorithm for Gaussian blur using finite-state machines" article. This
seems to be way faster (but it's doesn't allow as much granularity in
the gaussian's choice and it adds an error compared to this module).

The arm.config error that occurs is just that someone commited a dos file...
dos2unix could fix it. but it is not on Apples....

Gaussian blur optimisation. It now runs without skipping images with default sigma (2.0) using my small sample video (352x240). This still needs to be optimised a lot.

New gaussian blur video filter. This currently takes way too much CPU. I'm not sure how it should be optimised. Maybe using floats instead of ints might work (if it can remove the need for a division).